EP 1157779 A3 20020911 - C-Axis driving system for machine tools
Title (en)
C-Axis driving system for machine tools
Title (de)
Drehantriebssystem für Werkzeugmaschinen
Title (fr)
Système d'entraînement rotatif pour machine-outils
Publication
Application
Priority
JP 2000156815 A 20000526
Abstract (en)
[origin: EP1157779A2] In a C-axis driving system for machine tools including a worm wheel mounted on a spindle rotatably supported by a headstock, a worm shaft with a worm formed therein directed perpendicular to an axis of the spindle and placed so as to be pivotable about a pivotal shaft between an engagement position where the worm shaft is engaged with the worm wheel and a disengagement position where the worm shaft is disengaged therefrom, and a C-axis driving motor connected to the worm shaft and serving for rotationally indexing the spindle to a specified rotational angle, wherein the worm shaft is rotatably supported by a worm shaft base, the pivotal shaft is provided on the worm shaft base so as to be directed perpendicular to an axis of the worm shaft, and the pivotal shaft is supported by the headstock. Thus, the C-axis driving system for machine tools is capable of suppressing the upsizing of the C-axis unit as well as the increase in cost while implementing a smooth engagement with the worm wheel. <IMAGE>
IPC 1-7
IPC 8 full level
B23Q 16/02 (2006.01); B23Q 16/06 (2006.01); F16H 1/16 (2006.01)
CPC (source: EP US)
B23B 3/10 (2013.01 - US); B23Q 16/025 (2013.01 - EP US); Y10T 29/5165 (2015.01 - EP US); Y10T 74/19565 (2015.01 - EP US); Y10T 74/19614 (2015.01 - EP US); Y10T 74/19828 (2015.01 - EP US); Y10T 82/2511 (2015.01 - EP US); Y10T 82/2552 (2015.01 - EP US)
Citation (search report)
- [A] DD 241704 A1 19861224 - ZAHNSCHNEIDEMASCHINEN FABRIK M [DD]
- [A] US 4621405 A 19861111 - COOK PETER H [GB], et al
- [A] PATENT ABSTRACTS OF JAPAN vol. 012, no. 466 (M - 772) 7 December 1988 (1988-12-07)
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
EP 1157779 A2 20011128; EP 1157779 A3 20020911; EP 1157779 B1 20040728; DE 60104480 D1 20040902; DE 60104480 T2 20041125; JP 2001334443 A 20011204; JP 4643796 B2 20110302; US 2002017888 A1 20020214; US 6626058 B2 20030930
DOCDB simple family (application)
EP 01113031 A 20010528; DE 60104480 T 20010528; JP 2000156815 A 20000526; US 86656101 A 20010529